The Nike Free Trainer 5.0 training shoe features a no-sew upper construction with adaptive fit technology that provides dynamic lockdown. Dual-density midsole and Nike Free flex grooves offer a barefoot training experience. Midfoot wrap-up delivers additional lateral support. Delta nodes traction pattern gives ultimate grip on multiple surfaces. DiamondFlex design aids multI directional movement. Removable insole. Wt. 10.6 oz.